Presser foot for sewing machines



Nov 26, 1957 w. A. MARSH-ALL PREs'sER 001 FOR SEWING MACHINES Filed May 23, 1955 2/ Ir fl m/bum. Marshall IN VEN TOR.

United States Patent'O PRESSER FOOT FOR SEWING MACHINES Wilbur A. Marshall, Midland, Mich.

Application May 23, 1955, Serial No. 510,380

1 Claim. (Cl. 112-235) This invention generally relates to sewing machine attachments, and more specifically provides a new and useful presser foot for attachment to such machines.

An object of the present invention is to provide a presser foot for sewing machines which is constructed of transparent material to permit the person utilizing the sewing machine to see through the presser foot for viewing the entire line of stitches while they are being formed by the needle.

Another object of the present invention is to provide a presser foot that is detachably secured to the sewing machine and which includes a body member that is attached to a supporting bracket for limited pivotal movement.

Other important objects of the present invention will reside in its simplicity of construction, ease of attachment, efliciency in operation of the sewing machine, accuracy in operation of the sewing machine, its adaptation for its specific purposes and its relatively inexpensive manufacturing costs.

These together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure l is a perspective view showing the presser foot of the present invention positioned on a sewing machine showing the manner of viewing through the body member thereof;

Figure 2 is an enlarged perspective view showing the construction of the bracket and the manner of attaching it to the sewing machine;

Figure 3 is a side elevational view of the presser foot of the present invention;

Figure 4 is a top sectional view taken substantially upon a plane passing along section line 4-4 of Figure 3, showing the relationship of the bracket arm to the body member; and

Figure 5 is a vertical, sectional view taken substantially upon a plane passing along section line 5-5 of Figure 3 showing further structural details of the presser foot of the present invention.

Referring now specifically to the drawings, it will be seen that the numeral generally designates the presser foot of the present invention for attachment to the lower end of a presser foot bar 12 of a sewing machine (not shown) which also includes a reciprocating needle bar 14 having a needle 16 attached to the lower end thereof and held thereon by the usual clamp screw 18. The lower end of the presser bar 12 is provided with an internally threaded aperture 20 for receiving a threaded stud 22 of a clamp bolt 24 that is provided with a knurled portion 26 for hand manipulation.

Patented Nov. 26, 1957 The presser foot 10 generally includes a body member 28 of transparent material which may be preferably a transparent or clear plastic. The body member 28 includes a rounded heel portion 30 and a pair of forwardly projecting toe portions 32 which are spaced from each other and provided with curved facing edges 34. The toe members 32 are curved upwardly which, in conjunction with the curved edges 34 guide the material 36 upon which a stitching operation is being conducted, such as the button hole 38. At the terminal end of the edges 34 of the toe members is provided a generally transversely elongated opening 40 which receives the needle 16. Therefore, it will be seen that the forwardly extending toe portions 32 form a needle accommodating opening.

For securing the body member 28 to the presser bar 10, a supporting bracket generally designated by the numeral 42 is provided which includes a generally U-shaped portion 44 having a horizontally opening slot 46 extending through one leg portion and a portion of the bight portion for alignment with the aperture 20 for securing the bracket 42 to the presser bar 12 by the clamp screw 24. Connected to the lower edge of one leg of the U-shaped member 44 is an inverted U-shaped member 48 having depending spaced arms or legs 50 with inwardly extending detents 52 at the lower edges thereof. The body member 28 is provided with a pair of opposed recesses 54 having upwardly diverging side walls 56 together with indentations 58 therein for receiving the detents 52 on the arms 50, thereby detachably and pivotally securing the body member 28 to the arms 50 for pivotal movement within the limits defined by the diverging side walls 58, as illustrated in Figure 3.

It will be noted that the ends of the arms 50 together with the recesses or grooves 54 in the body member 28 are rounded to facilitate the limited pivotal movement of the body member 28. The body member 28 may be constructed of rigid transparent plastics or glass, and the inherent resiliency of the arms 50 will permit detachment of one body member 28 and the insertion of another type and the transparent body member 28 permits viewing of the stitching operation during all phases thereof, thereby permitting accurate control of the sewing machine and more accurate stitching for making a better article.

The foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the invention as claimed.

What is claimed as new is as follows:

A sewing machine presser foot comprising a heel portion and forwardly projecting toes having a needle accommodating space therebetween, said presser foot being constructed of transparent material and having vertical side walls, each of said side walls having a recess therein communicating with the upper surface of the presser foot and which is provided with upwardly diverging side walls and an inner wall having an inwardly extending indentation therein, a bracket adapted to suspend said presser foot from a sewing machine, said bracket including a pair of straight vertical legs disposed in opposite spaced parallel relation with fiat sides confronting, said legs having inwardly extending detents adjacent the lower ends thereof, said legs being constructed of resilient metallic material with the legs received in said recesses and the detents frictionally received in said ingap ng-woe dentations, saidlegs.havingflparalleLside.hedges.fortengag- References-Cited in the-file of this patent ing the diverging walls of the recesses thereby limiting UNITED STATES PATENTS the pivotal movement of the presser foot, the frictional engagement between the inner surfaces of the legs and ig g the inner walls of the recesses retaining said presser foot 5 in position, said legs providing an unobstructed view FOREIGN PATENTS -the'rebetweenof the -presser tfoot for viewing the cloth 695,321 Germany 22, 940

being werked by a'needle. 300,902 Sweden Nov. 1, 1954 

